978746248 has 16 divisors (see below), whose sum is σ = 1837089180. Its totient is φ = 488855808.

The previous prime is 978746243. The next prime is 978746267. The reversal of 978746248 is 842647879.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 978313284 + 432964 = 31278^2 + 658^2 .

It is not an unprimeable number, because it can be changed into a prime (978746243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56565 + ... + 71812.

Almost surely, 2^978746248 is an apocalyptic number.

It is an amenable number.

978746248 is a deficient number, since it is larger than the sum of its proper divisors (858342932).

978746248 is a wasteful number, since it uses less digits than its factorization.

978746248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129336 (or 129332 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 55.

The square root of 978746248 is about 31284.9204569869. The cubic root of 978746248 is about 992.8646234981.

The spelling of 978746248 in words is "nine hundred seventy-eight million, seven hundred forty-six thousand, two hundred forty-eight".